Bronze-stamping mill



A LEBRECHT BRONZE STAMPING MILL Flled March 11, 1927 Oct. Z3, 1928.

70% far lxinstaure oct. 23,1928. 1,68,548

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y BRONZE-armement. Application, mea umh 11,1ee7,seria1 No. 174,912, and in Germany Maren 15, 192e.` v

ln all the known bronze stamping mills. 17 ytherev engages a link rod 20, the free end with mechanical feeding of the raw material, of which is connected with a crank 21 on the raw material is introduced into the upper the driving shaft 6.' V 1 Y part ofthe stamper pot so that an intimate Upon the ratchetrwheel shaft 14. isrotats mixing thereof` with the material already in ably mounted an arm 722,. which moves over 6o the stamper pot is impossible, and the raw an arcuate bar` 23 f'secured to the filling material tends to leave the stamper pptagain hopper 11. The arcuate bar 23 contains a when there is suction therein wit outI 'the row of holes 24 by means of which the arm whole of it being worked up. 22 :can be fixed vindifferent positions by la` m rlhis l@defect is removed according to the bolt, apeg or the like. To .the arm 22-isv 65' present invention by supplying the raw `Inac secured' a curved'. slide 25, which .regulates 'y terial to the lower part of the stamper pot the engagpment of the pawl 16 with the and pushing it under the material that is ratchet 1w eel 15.v p already in the stamper pot. Furthermore Therurved slide 23`can be adjusted into e m the raw material on its way from the filling anyl desired position withn certain limits 70 hopper to the stamper pot is gradually comby shifting the arm 22. The' nearer the pressed, so that it reaches the stamper pot 'curved slide 22 is moved to thepawl 16, the in the form of more or less solid balls, plugs later` does the latter come into engagement or the like. with the ratchet wheel 15, when its oscily au The suction and sifting of the bronze lating movement is initiated by the link 75 powder produced in the stamper pot is rod 20, that is to sa ,the smaller is the an le eectedi with the simultaneous employment through which the ratchet wheel 15 and tghe of separators and bolting hutches by means. worm conveyer' 8 are rotated at each oscilof an exhauster. Two or more stamper pots lation ofthe pawl 16. The movement o e 2.5 are preferably provided with a conveyor the worm conveyer is thus adjustable in- 80 worm each and also with-a separator and a` dependently ofthe driving of the stamper 4. bolting hutch between the stamper pots and The stamper pot 2 communicates at the after the last stamper pot. top by a pipe or hose 26 with the lower end @ne constructional example of the invenof a hose 4lter 27. lAt the bottom the hose ao tion is diagrammatically illustrated in the filter 27 is connected -,by a pipe or hose 28y 85 accompanying drawings, wherein with a bolting hutch, a' plan sifter 30 for Fig. 1 shows a bronze stamping mill in example, with the interposition of a revolvside elevation, and Fig. 2 shows the stamper ing sluice 29, and at the top it is connected pot in sectional elevation on a larger scale. by a pipe or hose 31 with an exhauster 32. 35 The stamper pot 2 resting upon a founda- In advance of the stamping mill described 9o tion 1 is closed at the top by a cover 3, there may be arranged in case of need a f through which the stamp 4 passes. The .coarse stamping mill wlth a stamper pot driving of the stamp 4 is eected by a cam 2, a worm conveyor 9, together with a 5, which is mounted upon a driving shaft driving apparatus and a filling hopper 11a.

4.o 6 and comes periodically underneath fa col- .The stamper pot 2 is .connected at the top 95 lar 7 on the stamp rod. by a pipe .or hose 33 with the upper end o into the lower part of the pot 2 there a centrifugal separator'34, which communiopens a worm conveyer 8, the casing 9 of cates at the bottom by a pipe or hose 35, with which is covered, at the end that enters the the interposition ofla revolving sluice 36 and 45 ot 2, above the Worm conveyer shaft 10. a bolting hutch 37, with the filling hopper 100 utside the pot 2 there opens into thecasing 11 of the worm conveyor 9, and is connecte 9 of the worm8 a fillin hopper 11 of known at the top by a pipe or hose 38 with the kind. On the outer ree end of the conlower end of the hose filter 27. l

veyer shaft 10 is mounted a bevel wheel '12, The raw material is introduced into the to which meshes with a second bevel wheel 13. filling hopper 11a of the coarse stamper and 105' The bevel wheel 13 is arranged upon a stapushed by means of the Wormv conveyer tionary shaft 14, and is rigidly connected into the lower part of the pot 2, underneath with a ratchet wheel 15, the pawl 16 of the powder already pres/ent in the latter. which is carried by an arm 17 which is .ro- The stamp 4b disintegrates the raw material 55 tatable about the shaft 14. With the arm introduced, and the finished powder is 110 f rator 34 is drawn by 32 into eh the bolting hutch 37. In the latter the bronze powder is divided into dili'erent deone or more of which pass into filling hopper ll of the stamper pot 2, while the remainder are further worked up otherwise. The exhaust air of the sepadrawn by suction through the pipe 38, with the fine particles of bronze contained therein, into the hose filter 27.

The bronze powderreceived from the fillinghopper l1 of the worm conveyor 9 is introduced bythe latter into the stamper pot 2, the line stamper, and is pushed underneath the material already located in the stam er pot 2. The powder produced in the ne stamper 2 is drawn by suction through the pipe 26 into the hose The'bronae quite continuously.

he number and relative arrangement of stam er fittings, filters, separators, bolting hutclibs and the like, is of course not limited to the constructional form may differ therefrom. Th

hat I claim is f '1. A method of working for bronze stamping mills and the like 4with uninterrupted charging and discharging of the stamper pot, comprising pushing the raw material into the stamper pot at the bottom,.imder neath the material already present therein.

2. A method of working for bronze stamping mills and the like with uninterrupted charging land discharging of the stamper each illustrated, but us it is more parh already present therein;

nected on the one hand with pot, comprising gradually compressing the ra-w material on its way from a filling hopper to the stamper pot, and pushin the raw material into the stamper pot at t e bottom, underneath the material already present t erein, in the form of compact balls, plugs and the like.

3. A bronzeV stamping mill comprising a stamper pot, a iilling hopper, a worm conveyor adapted to push raw material from said filling hopper into'the stamper pot at the bottom, underneath the material already present therein,

the pitch of said veyer gradually decreasing from end to the stamper pot end.

4. A bronze stamping mill comprising a stamper pot, a filling hopper, a worm conveyer adapted to push raw material from said filling hopper into the stamper pot unthe hopper -derneath the material already present therepot end, a ratchet wheel for driving said worm conveyer, a pawl ada ted to rotate said ratchet wheel, means ihr oscillating said pawl, and a curved slide for regu t e engagement of said pawl with the ratchet whel independently of the oscillation'of the paw 5. Apparatus for the ing of bronze powder, of stamping mills adapted to pro' uce material of different degrees of ineness, an exhauster, a filter, a stamper pot'in each mill, a worm conveyer adapted to feed material to production and siftone hand with a stamping mill on the other 6; Apparatus for the production and sifting o bronze powder, comprising a plurality of stam in mills adapted to produce material o -di'erent degrees of ineness, and exhauster, a lilter, a stamper pot in each mill, a worm conveyer adapted to -feed material to each stamper pot underneath the material a separator cona stamping mill producin a coarse product and on the other hand withr the Worm conveyer and the filter o a stamping mill producing a liner prodhe separator being connected with the name to this specification.

ALFRED1 LEBRECHT.

comprising a lurality stamper pot underneath the material 

